<<qq_jp.do>>
This file first loads the postwar quarterly real GDP of JAPAN from <<gdp.dta>>, applies the HP filter, and draws a QQ plot (Figure1 (right)).
<<qq_fred_us.do>>
This file first loads the postwar quarterly real GDP of the US form FRED (via freduse), applies the HP filter, and draws a QQ plot (Figure1 (left)).
<<qq_fred_jp_recent.do>>
This file first loads the recent quarterly real GDP of JAPAN form FRED (via freduse), applies the HP filter, and draws a QQ plot (Figure4 (right)).
<<qq_fred_us_recent.do>>
This file first loads the recent quarterly real GDP of the US form FRED (via freduse), applies the HP filter, and draws a QQ plot (Figure4 (left)).
